I can provide a large number of spare parts for old PCs.
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FOR SALE: 1 X ECC802S TESLA PRODUCTION TUBE. TESLA PRODUCTION. TESTED IN AMPLITREX AT1000 TUBE TESTER. They do not take this into account. 95/102% EMISSION (EM). 90/100% TRANSCONDUCTANCE (GM). 0.2/0.2mA/V GAS.
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Rare Matched Pair ECC82 / 12AU7 / ECC802S VALVO D - GETTER 45 Degree. 1953'y Copenhagen. Full Tested ON ELPO P-508.
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2x TESLA ECC802S / 12AU7WA. of original TESLA ECC802S tubes. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. Datecodes: FX = 5/1974. Tube 2: Ia1=3.10mA / Ia2 =3.10mA, S/gm1= 1.20 mA/V / S/gm2= 1.20 mA/V.
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Tested NOS on my AVO mk4 valve tester as follows.
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With genuine diamond on the base between pins. Our usual tube tester is the AVO VCM163. One of the best testers in the world.
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2x TESLA ECC802S / 12AU7WA. of original TESLA ECC802S tubes. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. Datecodes: FY = 6/1974. Tube 2: Ia1=4.00mA / Ia2 =3.70mA, S/gm1= 1.30 mA/V / S/gm2= 1.30 mA/V.
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Pair of Sylvania 6189 12au7WA with Gray plates, Triple Micas and Dual-Stabilizer bars. The Sylvania lettering is worn off both tubes. The etched 6189 is shown on each tube, the 12au7wa label is partially worn off.
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